at sandy hook elementary school in newton, connecticut were read today. mourners observed a moment of silence to mark one week. many gathered in the rain outside the school to pay respects. >>> the head of the national rifle association layed out a plan to stop the killings. ktvu's eric rasmussen found one man who is leading a different fight to treat gun violence as a public health epidemic. >> reporter: he is one of hundreds of petitions that sprung up since the tragedy at sandy hook elementary school. >> reporter: as the national rifle association took the podium in washington. >> the only thing that stop as bad guy with a gun is a good guy with a gun. >> reporter: he was pushing a different solution. >> there are 30,000 people who die every year from gun violence. same number who die from car crashes. the centers for disease control researches car crashes and barely looks at guns. >> reporter: he and others are asking the centers for disease control to research and measure the magnitude of gun violence in america. the national rifle association lobbie